Device for quickly replacing flaw detection calibration test block

Abstract

The invention discloses a device for rapidly replacing a flaw detection calibration test block, and relates to the technical field of flaw detection calibration, the device comprises a calibration platform and a test block body, and also comprises: a bearing assembly arranged on the calibration platform; the adjusting assembly is arranged on the calibration platform and is used for adjusting the test block bodies with different sizes; the driving assembly is arranged on the calibration platform; the transmission assembly is arranged on the calibration platform and used for transmitting the power of the driving assembly to the adjusting assembly; the lubricating assembly is arranged on the calibration platform and used for lubricating the adjusting assembly; through the arrangement of the bearing assembly, the mold fixed on the iron plate is fixed by utilizing the control of the existence of the magnetic field of the electromagnet, and through the various molds capable of placing the test block bodies with special shapes, the test block bodies with different shapes can be effectively placed on the bearing table on the basis of placing the test block bodies with different thicknesses; the types of replaceable test block bodies of the device are expanded, and the application range of the device is expanded.

Description

Technical Field

[0001] This invention relates to the technical field of flaw detection calibration, and more particularly to a device for quickly changing flaw detection calibration test blocks. Background Technology

[0002] Metal flaw detection equipment uses ultrasonic, phased array, and eddy current testing technologies to perform non-destructive testing on internal defects in metallic materials. Before operation, the sensitivity of the probe needs to be calibrated. A calibration platform needs to be set up next to the machine to hold calibration blocks. Because the material and thickness of the steel plates being inspected vary, matching calibration blocks need to be fabricated. During actual flaw detection, these blocks are replaced to calibrate the probe's sensitivity, achieving more accurate calibration and ensuring the quality of the flaw detection. Since current calibration blocks are unique and come with the main equipment, but the thickness and material of the plates used in actual production are constantly changing, the probe calibration requires calibration blocks made of the same material to achieve precise probe calibration. Based on the actual needs and current status of the flaw detection equipment on site, a suitable and easy-to-operate device needs to be fabricated to replace the calibration blocks.

[0003] While existing replacement devices can replace calibration test blocks for flaw detection, they only have a single support platform for placing the calibration test blocks. This makes it impossible to fix some oddly shaped calibration test blocks on the support platform, thus hindering effective calibration. Consequently, the types of calibration test blocks that the replacement device can replace are reduced, limiting the applicability of the device. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a device for quickly changing the calibration test block for flaw detection, which aims to solve the technical problem that the above-mentioned devices can only replace a limited variety of calibration test blocks, thus limiting the applicability of the device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An apparatus for quickly changing a flaw detection calibration block includes a calibration platform, a block body, and further includes:

[0007] A support component, mounted on the calibration platform, is used to support test block bodies of different sizes and shapes;

[0008] An adjustment component, disposed on the calibration platform, is used to make the upper surface of test block bodies of different sizes flush with the upper surface of the calibration platform;

[0009] A drive component, mounted on the calibration platform, is used to provide power to the adjustment component;

[0010] A transmission component, disposed on the calibration platform, is used to transmit power from the drive component to the adjustment component;

[0011] A lubrication assembly, mounted on the calibration platform, is used for automatic lubrication of parts.

[0012] Preferably, the carrier component includes:

[0013] A support platform is slidably connected to the calibration platform;

[0014] The rollers are rotatably connected to the support platform;

[0015] An electromagnet is fixedly connected to the support platform;

[0016] An iron plate is slidably connected to the support platform;

[0017] The mold is slidably connected to the support platform and fixedly connected to the iron plate;

[0018] A shielding layer is disposed between the mold and the iron plate.

[0019] Preferably, the adjustment component includes:

[0020] The mounting plate is fixedly connected to the calibration platform;

[0021] A rotating sleeve is disposed on the mounting plate and rotatably connected to the mounting plate;

[0022] The driven bevel gear is fixedly connected to the rotating sleeve, and the driven bevel gear is rotatably connected to the mounting plate;

[0023] A threaded sleeve is fixedly connected to the calibration platform, and the threaded sleeve is fixedly connected to the mounting plate.

[0024] A threaded rod is threadedly connected to the threaded sleeve, the threaded rod is threadedly connected to the rotating sleeve, and the threaded rod is fixedly connected to the support platform.

[0025] Preferably, the driving component includes:

[0026] A fixed base is disposed on the calibration platform and fixedly connected to the calibration platform;

[0027] A drive motor is fixedly connected to the fixed base;

[0028] The drive pulley is fixedly connected to the output shaft of the drive motor;

[0029] A transmission belt is disposed on the drive pulley and is tactilely connected to the drive pulley.

[0030] Preferably, the delivery component includes:

[0031] The bearing is fixedly connected to the calibration platform;

[0032] A rotating shaft is mounted on the bearing and rotatably connected to the bearing;

[0033] The driving bevel gear is fixedly connected to the rotating shaft, and the driving bevel gear meshes with the driven bevel gear.

[0034] The driven pulley is fixedly connected to the rotating shaft, and the driven pulley is tactilely connected to the transmission belt;

[0035] The handle is rotatably connected to the driven pulley.

[0036] Preferably, the lubrication assembly includes:

[0037] An oil storage tank is mounted on the calibration platform and is fixedly connected to the calibration platform.

[0038] An oil pump is fixedly connected to the oil storage tank;

[0039] An oil outlet pipe is disposed on the mounting plate and fixedly connected to the mounting plate; the oil outlet pipe is fixedly connected to the oil pump.

[0040] An atomizing fuel injector is fixedly connected to the fuel outlet pipe;

[0041] A filter device is fixedly connected to the calibration platform, and the filter device is fixedly connected to the oil storage tank.

[0042] An oil inlet pipe is fixedly connected to the filter device, and the oil inlet pipe is fixedly connected to the threaded sleeve;

[0043] The oil return channel is located on the mounting plate.

[0044] Preferably, the calibration platform is provided with a slide groove, and the roller is rotatably connected to the calibration platform along the slide groove.

[0045] Preferably, there are several molds, and the several molds can each hold test block bodies of various shapes.

[0046] Preferably, the shielding layer is an electromagnetic shielding coating composed of resin, diluent, additives, and conductive fillers.

[0047] Preferably, the oil tank stores environmentally friendly lubricating oil with high-temperature anti-wear and low-temperature starting properties.

[0048] Preferably, the distance between the threaded sleeve and the rotating sleeve on the mounting plate is greater than the diameter of the oil return channel, and the oil return channel is located between the rotating sleeve and the threaded sleeve.

[0049] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0050] By setting up the support components and controlling the presence or absence of the magnetic field of the electromagnet, the mold fixed on the iron plate can be fixed. Furthermore, by using various molds that can hold test blocks with special shapes, the support platform can effectively hold test blocks of different shapes in addition to test blocks of different thicknesses. This expands the types of test blocks that the device can replace and broadens the scope of application of the device. Attached Figure Description

[0051] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 A three-dimensional structural schematic diagram of a device for quickly changing flaw detection calibration blocks is shown.

[0053] Figure 2 A first partial cross-sectional view of an apparatus for quickly changing flaw detection calibration blocks is shown.

[0054] Figure 3 It shows Figure 2 A magnified view of a portion of point A in the middle.

[0055] Figure 4 It shows Figure 2 A magnified view of a portion of point B in the middle.

[0056] Figure 5 A second partial cross-sectional view of an apparatus for quickly changing flaw detection calibration blocks is shown.

[0057] Figure 6 It shows Figure 5 A magnified view of a portion of point C.

[0058] Figure 7 A third partial cross-sectional view of an apparatus for quickly changing flaw detection calibration blocks is shown.

[0059] Legend:

[0060] 1. Calibration platform; 2. Test block body; 3. Support platform; 4. Roller; 5. Electromagnet; 6. Iron plate; 7. Mold; 8. Shielding layer; 9. Mounting plate; 10. Rotating sleeve; 11. Driven bevel gear; 12. Threaded sleeve; 13. Threaded rod; 14. Fixed base; 15. Drive motor; 16. Drive pulley; 17. Transmission belt; 18. Bearing; 19. Rotating shaft; 20. Driven bevel gear; 21. Driven pulley; 22. Handle; 23. Oil reservoir; 24. Oil pump; 25. Oil outlet pipe; 26. Atomizing spray nozzle; 27. Filter device; 28. Oil inlet pipe; 29. ​​Oil return channel. Detailed Implementation

[0061] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0062] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0063] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0065] Reference Figures 1 to 7An embodiment of the device for quickly changing flaw detection calibration test blocks according to the present invention will be further described.

[0066] A device for quickly changing a flaw detection calibration block includes a calibration platform 1 and a block body 2. The calibration platform 1 is provided with a sliding groove, and further includes:

[0067] A support assembly, mounted on calibration platform 1, is used to support test block bodies 2 of different sizes and shapes. The support assembly includes:

[0068] The support platform 3 is slidably connected to the calibration platform 1;

[0069] Roller 4 is rotatably connected to the support platform 3, and roller 4 is rolled along the slide groove to the calibration platform 1;

[0070] Electromagnet 5 is fixedly connected to support platform 3;

[0071] Iron plate 6 is slidably connected to support platform 3;

[0072] Mold 7 is slidably connected to the support platform 3 and fixedly connected to the iron plate 6. There are several molds 7, and several molds 7 can respectively place test block bodies 2 of various shapes.

[0073] The shielding layer 8 is disposed between the mold 7 and the iron plate 6. The shielding layer 8 is an electromagnetic shielding coating composed of resin, diluent, additives and conductive fillers.

[0074] Place the mold 7 containing the test block body 2 onto the slidingly connected support platform 3, activate the electromagnet 5, the electromagnet 5 generates magnetic force to attract the iron plate 6, so that the mold 7, which is fixedly connected to the iron plate 6, is fixed on the support platform 3. Furthermore, due to the setting of the shielding layer 8, the magnetic field generated by the electromagnet 5 cannot interfere with the flaw detection calibration work, thus achieving the effect of conveniently supporting different test block bodies 2.

[0075] Reference Figures 1 to 7 By setting up the support components and controlling the presence or absence of the magnetic field of the electromagnet 5, the mold 7 fixed on the iron plate 6 can be fixed. Furthermore, by using various molds 7 that can hold test block bodies 2 with special shapes, the support platform 3 can effectively hold test block bodies 2 with different shapes on the basis of holding test block bodies 2 with different thicknesses, thereby expanding the types of test block bodies 2 that the device can replace and expanding the scope of application of the device.

[0076] An adjustment component, mounted on the calibration platform 1, is used to make the upper surface of test block bodies 2 of different sizes flush with the upper surface of the calibration platform 1. The adjustment component includes:

[0077] Mounting plate 9 is fixedly connected to calibration platform 1;

[0078] Rotary sleeve 10 is mounted on mounting plate 9 and is rotatably connected to mounting plate 9;

[0079] Driven bevel gear 11 is fixedly connected to rotating sleeve 10, and driven bevel gear 11 is rotatably connected to mounting plate 9;

[0080] The threaded sleeve 12 is fixedly connected to the calibration platform 1, and the threaded sleeve 12 is fixedly connected to the mounting plate 9.

[0081] The threaded rod 13 is threadedly connected to the threaded sleeve 12, the threaded rod 13 is threadedly connected to the rotating sleeve 10, and the threaded rod 13 is fixedly connected to the bearing platform 3.

[0082] The driven bevel gear 11 rotates, causing the rotating sleeve 10, which is fixedly connected to the driven bevel gear 11, to rotate. This, in turn, causes the threaded rod 13, which is threadedly connected to the rotating sleeve 10, to rotate. Since the threaded rod 13 is threadedly connected to the threaded sleeve 12, which is fixed on the calibration platform 1, the threaded rod 13 moves downward while rotating. The movement of the threaded rod 13 causes the support platform 3, which is fixedly connected to the threaded rod 13, to move downward along the slide groove of the calibration platform 1. This causes the test block body 2, which is fixed in the support assembly, to move downward, thus achieving the adjustment effect.

[0083] Reference Figures 1 to 7 A drive component, mounted on calibration platform 1, is used to provide power to the adjustment component. The drive component includes:

[0084] A fixed base 14 is mounted on the calibration platform 1 and is fixedly connected to the calibration platform 1.

[0085] The drive motor 15 is fixedly connected to the fixed base 14;

[0086] The drive pulley 16 is fixedly connected to the output shaft of the drive motor 15;

[0087] The transmission belt 17 is disposed on the drive pulley 16 and is tumblingly connected to the drive pulley 16.

[0088] When the drive motor 15 is started, the output shaft of the drive motor 15 rotates, which drives the drive pulley 16, which is fixedly connected to the output shaft of the drive motor 15, to rotate. This drives the transmission belt 17, which is rolledly connected to the drive pulley 16, to move. The movement of the transmission belt 17 drives the driven pulley 21, which is rolledly connected to the transmission belt 17, to rotate, thus providing power.

[0089] A transmission component, mounted on calibration platform 1, is used to transmit power from the drive component to the regulating component. The transmission component includes:

[0090] Bearing 18 is fixedly connected to calibration platform 1;

[0091] A rotating shaft 19 is mounted on a bearing 18 and is rotatably connected to the bearing 18.

[0092] The driving bevel gear 20 is fixedly connected to the rotating shaft 19, and the driving bevel gear 20 is meshed with the driven bevel gear 11.

[0093] Driven pulley 21 is fixedly connected to rotating shaft 19, and driven pulley 21 is tumblingly connected to transmission belt 17;

[0094] The handle 22 is rotatably connected to the driven pulley 21.

[0095] The driven pulley 21 rotates, causing the rotating shaft 19, which is fixedly connected to the driven pulley 21, to rotate. Due to the bearing 18, the rotating shaft 19, which is rotatably connected to the bearing 18, rotates more smoothly and stably. The rotation of the rotating shaft 19 causes the driving bevel gear 20, which is fixedly connected to the rotating shaft, to rotate, thereby causing the driven bevel gear 11, which meshes with the driving bevel gear 20, to rotate, thus achieving the effect of transmitting power.

[0096] Reference Figures 1 to 7 A lubrication assembly, mounted on calibration platform 1, is used for automatic lubrication of parts. The lubrication assembly includes:

[0097] Oil tank 23 is set on calibration platform 1 and fixedly connected to calibration platform 1. Oil tank 23 stores green and environmentally friendly lubricating oil with high temperature anti-wear and low temperature start-up characteristics.

[0098] Oil pump 24 is fixedly connected to oil reservoir 23;

[0099] Oil outlet pipe 25 is installed on mounting plate 9 and fixedly connected to mounting plate 9. Oil outlet pipe 25 is fixedly connected to oil pump 24.

[0100] Atomizing nozzle 26 is fixedly connected to oil outlet pipe 25;

[0101] Filter device 27 is fixedly connected to calibration platform 1, and filter device 27 is fixedly connected to oil tank 23;

[0102] The oil inlet pipe 28 is fixedly connected to the filter device 27, and the oil inlet pipe 28 is fixedly connected to the threaded sleeve 12.

[0103] The oil return channel 29 is provided on the mounting plate 9. The distance between the threaded sleeve 12 and the rotating sleeve 10 on the mounting plate 9 is greater than the diameter of the oil return channel 29, and the oil return channel 29 is provided between the rotating sleeve 10 and the threaded sleeve 12.

[0104] Start the oil pump 24, which draws the lubricating oil from the oil reservoir 23 to the oil outlet pipe 25. The oil outlet pipe 25 then transports the lubricating oil to the atomizing spray head 26, atomizing the lubricating oil and spraying it onto the rotating active and driven bevel teeth to reduce friction. Excess lubricating oil falls onto the mounting plate 9 and flows into the return oil channel 29. From the return oil channel 29, it enters the threaded sleeve 12 to lubricate the rotating threaded rod 13. Excess lubricating oil and a small amount of fine iron filings then flow into the oil inlet pipe 28 and enter the filter device 27, which is fixedly connected to the oil inlet pipe 28, for filtration. The filtered clean lubricating oil then enters the oil reservoir 23, achieving an automated effect that eliminates the need for manual lubrication.

[0105] Working principle: Refer to Figures 1 to 7 Place the mold 7 containing the test block body 2 onto the slidingly connected support platform 3, start the electromagnet 5, the electromagnet 5 generates magnetic force to attract the iron plate 6, so that the mold 7 fixedly connected to the iron plate 6 is fixed on the support platform 3, start the drive motor 15, the output shaft of the drive motor 15 rotates and drives the drive pulley 16 fixedly connected to the output shaft of the drive motor 15 to rotate, thereby driving the transmission belt 17 rolledly connected to the drive pulley 16 to move, the transmission belt 17 moves to drive the driven pulley 21 rolledly connected to the transmission belt 17 to rotate, when the drive motor 15 is damaged, remove the transmission belt 17 and push the handle 22 by hand to drive the driven pulley 21 to rotate, so as to achieve the effect of providing power;

[0106] The driven pulley 21 rotates, causing the rotating shaft 19, which is fixedly connected to the driven pulley 21, to rotate. Due to the bearing 18, the rotating shaft 19, which is rotatably connected to the bearing 18, rotates more smoothly and stably. The rotation of the rotating shaft 19 causes the driving bevel gear 20, which is fixedly connected to the rotating shaft, to rotate, thereby causing the driven bevel gear 11, which meshes with the driving bevel gear 20, to rotate. The rotation of the driven bevel gear 11 causes the rotating sleeve 10, which is fixedly connected to the driven bevel gear 11, to rotate, thereby causing the threaded rod 13, which is threadedly connected to the rotating sleeve 10, to rotate. Since the threaded rod 13 is threadedly connected to the threaded sleeve 12, which is fixedly connected to the calibration platform 1, the threaded rod 13 moves downward while rotating. The movement of the threaded rod 13 causes the support platform 3, which is fixedly connected to the threaded rod 13, to move downward along the slide groove of the calibration platform 1, thereby causing the test block body 2, which is fixed in the support assembly, to move downward until the upper surface of the test block body 2 is flush with the upper surface of the calibration platform 1. Then the drive motor 15 is turned off, achieving the desired effect and facilitating subsequent calibration work.

[0107] Reference Figures 1 to 7When the active bevel gear 20 rotates, the oil pump 24 is started. The oil pump 24 draws the lubricating oil in the oil storage tank 23 to the oil outlet pipe 25, and then transports it to the atomizing spray head 26 through the oil outlet pipe 25. The lubricating oil is atomized and sprayed onto the rotating active and driven bevel gears, reducing the friction between the active and driven bevel gears. Excess lubricating oil falls onto the mounting plate 9 and flows into the return oil channel 29. It then enters the threaded sleeve 12 through the return oil channel 29 to lubricate the rotating threaded rod 13. Excess lubricating oil and a small amount of fine iron filings then flow into the oil inlet pipe 28 and enter the filter device 27, which is fixedly connected to the oil inlet pipe 28, for filtration. The filtered clean lubricating oil then enters the oil storage tank 23, achieving an automated effect that eliminates the need for manual lubrication and extends the service life of the device.

[0108] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for quickly changing a flaw detection calibration block, comprising a calibration platform (1) and a block body (2), characterized in that, Also includes: The support component is set on the calibration platform (1) and is used to support test block bodies (2) of different sizes and shapes. The carrier component includes: The support platform (3) is slidably connected to the calibration platform (1); Roller (4) is rotatably connected to the support platform (3); An electromagnet (5) is fixedly connected to the support platform (3); Iron plate (6) is slidably connected to the support platform (3); The mold (7) is slidably connected to the support platform (3) and fixedly connected to the iron plate (6); A shielding layer (8) is disposed between the mold (7) and the iron plate (6); An adjustment component is provided on the calibration platform (1) to make the upper surface of the test block body (2) of different sizes flush with the upper surface of the calibration platform (1); A drive component, mounted on the calibration platform (1), is used to provide power to the adjustment component; A transmission component, disposed on the calibration platform (1), is used to transmit power from the drive component to the adjustment component; A lubrication assembly, disposed on the calibration platform (1), is used for automatic lubrication of parts.

2. The device for quickly changing a flaw detection calibration block according to claim 1, characterized in that, The adjustment component includes: Mounting plate (9) is fixedly connected to the calibration platform (1); A rotating sleeve (10) is disposed on the mounting plate (9) and is rotatably connected to the mounting plate (9); Driven bevel gear (11) is fixedly connected to the rotating sleeve (10), and the driven bevel gear (11) is rotatably connected to the mounting plate (9); A threaded sleeve (12) is fixedly connected to the calibration platform (1), and the threaded sleeve (12) is fixedly connected to the mounting plate (9); The threaded rod (13) is threadedly connected to the threaded sleeve (12), the threaded rod (13) is threadedly connected to the rotating sleeve (10), and the threaded rod (13) is fixedly connected to the support platform (3).

3. The device for quickly changing a flaw detection calibration block according to claim 2, characterized in that, The driving component includes: A fixed base (14) is disposed on the calibration platform (1) and fixedly connected to the calibration platform (1); The drive motor (15) is fixedly connected to the fixed base (14); The drive pulley (16) is fixedly connected to the output shaft of the drive motor (15); A transmission belt (17) is disposed on the drive pulley (16) and is tumbledly connected to the drive pulley (16).

4. The device for quickly changing a flaw detection calibration block according to claim 3, characterized in that, The transmission component includes: The bearing (18) is fixedly connected to the calibration platform (1); A rotating shaft (19) is mounted on the bearing (18) and is rotatably connected to the bearing (18); The driving bevel gear (20) is fixedly connected to the rotating shaft (19), and the driving bevel gear (20) meshes with the driven bevel gear (11); Driven pulley (21) is fixedly connected to the rotating shaft (19), and driven pulley (21) is tumblingly connected to the transmission belt (17); The handle (22) is rotatably connected to the driven pulley (21).

5. The device for quickly changing a flaw detection calibration block according to claim 4, characterized in that, The lubrication assembly includes: An oil storage tank (23) is set on the calibration platform (1) and fixedly connected to the calibration platform (1); An oil pump (24) is fixedly connected to the oil storage tank (23); An oil outlet pipe (25) is provided on the mounting plate (9) and fixedly connected to the mounting plate (9). The oil outlet pipe (25) is fixedly connected to the oil pump (24). Atomizing nozzle (26) is fixedly connected to the oil outlet pipe (25); The filter device (27) is fixedly connected to the calibration platform (1), and the filter device (27) is fixedly connected to the oil storage tank (23); The oil inlet pipe (28) is fixedly connected to the filter device (27), and the oil inlet pipe (28) is fixedly connected to the threaded sleeve (12); The oil return channel (29) is provided on the mounting plate (9).

6. The device for quickly changing a flaw detection calibration block according to claim 5, characterized in that, The calibration platform (1) is provided with a sliding groove, and the roller (4) is rotatably connected to the calibration platform (1) along the sliding groove.

7. The device for quickly changing a flaw detection calibration test block according to claim 6, characterized in that, There are several molds (7), and each mold (7) can hold a test block body (2) of various shapes.

8. The device for quickly changing a flaw detection calibration test block according to claim 7, characterized in that, The shielding layer (8) is an electromagnetic shielding coating composed of resin, diluent, additives and conductive fillers.

9. The device for quickly changing a flaw detection calibration block according to claim 8, characterized in that, The oil tank (23) stores green and environmentally friendly lubricating oil with high-temperature anti-wear and low-temperature starting characteristics.

10. The device for quickly changing a flaw detection calibration test block according to claim 9, characterized in that, The distance between the threaded sleeve (12) and the rotating sleeve (10) on the mounting plate (9) is greater than the diameter of the oil return channel (29), and the oil return channel (29) is located between the rotating sleeve (10) and the threaded sleeve (12).

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